0C1297

The LTC1297 is a data acquisition system that contains a 12-bit, switched-capacitor successive approximation A/D, a differential input, sample-and-hold on the (+) input, and serial I/O. When the LTC1297 is idle between conversions, it automatically powers down, reducing the supply current to 5µA, typically. The LTC1292 is capable of digitizing signals at a 60kHz rate and with the device's excellent AC characteristics, it can be used for DSP applications. All these features are packaged in an 8-pin DIP and are made possible using LTCMOSTM switched-capacitor technology. The serial I/O is designed to communicate without external hardware to most MPU serial ports and all MPU parallel I/O ports, allowing data to be transmitted over three wires. Because of their accuracy, ease of use, and small package size, these devices are well-suited for digitizing analog signals in remote applications where a minimum number of interconnects and power consumption are important.